11.8 修改止损止盈组件

根据用户输入不同的条件进行修改止损止盈

实现代码

// 盈利盈利止损止盈
bool moveSLTPProfit(const string symbol,
                    const int type,
                    const int sl,
                    const int tp,
                    const ulong magic
)
{
    int len  = PositionsTotal();
    double ask = SymbolInfoDouble(symbol, SYMBOL_ASK);
    double bid = SymbolInfoDouble(symbol, SYMBOL_BID);
    double point = SymbolInfoDouble(symbol, SYMBOL_POINT);
    PositionInfo pos_info;
    for(int i=0; i<len; i++)
    {
      // 如果订单没找到直接跳过该订单
      if(!getPositionInfo(i,pos_info)) continue;
      // 订单获取成功
      printf("找到订单了!");
      if(type == 0){
        if(pos_info.sl <= ask - sl * point){
          moveSLTP(pos_info, symbol, type, ask, sl, tp,magic);
        }
            
      }
        
      else if(type == 1) 
        if(pos_info.sl >= bid + sl *point)
          moveSLTP(pos_info, symbol, type, bid, sl, tp,magic);
      
      
    }
  return false;
  
}

bool moveSLTP(PositionInfo &pos_info,
              const string symbol,
              const int type,
              const double price, 
              const int sl, 
              const int tp, 
              const ulong magic)
{
  // 不满足条件直接退出
  string m_sym = valSymbol(symbol);
  if(m_sym == "") return false;
  
  if(pos_info.magic != magic) return false;
  
  if(pos_info.symbol != m_sym) return false;
  
  if(pos_info.type != type) return false;
  printf("条件满足,进入");
  double m_sl = valStopLossPrice(m_sym, type, price,sl);
  double m_tp = valTakeProfitPrice(m_sym, type, price,tp);
  if(m_sl == pos_info.sl && m_tp == pos_info.tp) return false;
  printf("止损价: %f, 止盈价: %f", m_sl, m_tp);
  if(m_sl == 0 && m_tp == 0) return false;
  else if(m_sl != pos_info.sl && m_tp == 0)
    return moveSLTPBase(pos_info.ticket, m_sym, m_sl, pos_info.tp,magic);
  else if(m_sl == 0 && m_tp != pos_info.tp)
    return moveSLTPBase(pos_info.ticket, m_sym, pos_info.sl, m_tp,magic);
  else if(m_sl != pos_info.sl && m_tp != pos_info.tp) 
    return moveSLTPBase(pos_info.ticket, m_sym, m_sl, m_tp,magic);

  return false;
}

// 修改止损止盈发送请求组件
bool moveSLTPBase(const ulong ticket,
                  const string symbol,
                  const double stop_loss,
                  const double take_profit,
                  const ulong magic
      
)
{
  // 3 创建和初始化交易请求体和返回响应结构体
  MqlTradeRequest request = {};
  MqlTradeResult result = {};
  
  //--- 设置操作参数
  request.action  =TRADE_ACTION_SLTP; // 交易操作类型
  request.position=ticket;            // 持仓单号
  request.symbol=symbol;              // 交易品种 
  request.sl      =stop_loss;         // 持仓止损
  request.tp      =take_profit;       // 持仓止赢
  request.magic=magic;                // 持仓的识别码
  
  bool is_ok = OrderSend(request, result);
  if(is_ok)
  {
     return true;
  }
  else
  {
    printf("发送交易请求修改失败,错误代码: %d", GetLastError());
    // 重置错误代码
    ResetLastError();
    return false;
  }
}